en_tn_condensed/mat/11/02.md

Now

This word is used here to mark a new part of the story.

when John heard in the prison about

This is the first mention of John being in prison. Some languages may need to state that he had been put in prison or that he was in prison. Alternate translation: "Now John had been put in prison. When he heard about" or "When John, who was in prison, heard about"

he sent a message by his disciples

John the Baptist sent his own disciples with a message to Jesus.